Home / 85,561.08-128,327.04-23,217

Finding the Fourth Proportional to 85,561.08, 128,327.04 and 23,217

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Solution

The fourth proportional to 85,561.08, 128,327.04 and 23,217 is: 34,821.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,561.08 : 128,327.04 = 23,217 : x
  2. Step 2: Convert to fraction form
    85,561.08/128,327.04 = 23,217/x
  3. Step 3: Cross multiply
    85,561.08x = 128,327.04 × 23,217
  4. Step 4: Simplify right side
    85,561.08x = 2,979,368,887.68
  5. Step 5: Solve for x
    x = 2,979,368,887.68/85,561.08
  6. Step 6: Final answer
    x = 34,821.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.